Easily-torn food packaging bag extrusion device

Abstract

The utility model relates to the technical field of packaging bag production, in particular to an easy-to-tear food packaging bag extruding device which comprises a base, an extruding machine is fixedly installed on the base, an extruding pipe is fixedly installed at the output end of the extruding machine, and an extruding head is installed at one end of the extruding pipe through a connecting assembly. A plurality of cold air spray pipes are fixedly installed on the extrusion head, an annular pipe is fixedly connected to the extrusion pipe in a sleeving mode, a plurality of connecting holes are formed in the annular pipe, one ends of the cold air spray pipes are inserted into the connecting holes respectively, a draught fan is fixedly installed on the base, and an air supply pipe is fixedly installed at the output end of the draught fan. Through mutual cooperation of the fan, the air supply pipe, the annular pipe and the cold air spray pipe, primary cooling is carried out while extrusion is carried out, so that extruded plastic packaging bags lose partial plasticity, the subsequently processed plastic packaging bags are uniform in thickness and are not broken, and the production quality of the plastic packaging bags is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag production, in particular to an extrusion device for an easily tearable food packaging bag. Background Art

[0002] A plastic packaging bag refers to a bag used for packaging various commodities, which facilitates the transportation and storage of goods during the production and circulation processes. When manufacturing plastic packaging bags, the molten raw materials are usually extruded outward through an extrusion device and then subjected to corresponding blowing and cooling.

[0003] When the plastic packaging bag is extruded from the extrusion device, it has a high temperature and strong fluidity, resulting in high plasticity of the plastic packaging bag. During subsequent processing, it is prone to deformation and rupture, thus affecting the production quality of the plastic packaging bag. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the following disadvantages in the prior art: the plastic packaging bag has high plasticity and is prone to deformation and rupture during subsequent processing, thus affecting the production quality of the plastic packaging bag. An extrusion device for an easily tearable food packaging bag is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An extrusion device for an easily tearable food packaging bag, including a base, an extruder is fixedly installed on the base, an extrusion pipe is fixedly installed at the output end of the extruder, and an extrusion head is installed at one end of the extrusion pipe through a connection component;

[0007] A plurality of mounting holes are formed in the extrusion head, and cold air spray pipes are fixedly installed in the plurality of mounting holes. An annular pipe is fixedly sleeved on the extrusion pipe, and a plurality of connection holes are formed in the annular pipe. One ends of the plurality of cold air spray pipes are respectively inserted into the plurality of connection holes. A blower is fixedly installed on the base, and an air supply pipe is fixedly installed at the output end of the blower. The end of the air supply pipe away from the blower is communicated with the annular pipe.

[0008] Preferably, a refrigeration instrument is fixedly installed in the middle section of the air supply pipe, and a support block is fixedly installed on the refrigeration instrument. The support block is fixedly installed on the base.

[0009] Preferably, a rectangular block is fixedly installed in the middle section of the air supply pipe. The rectangular block is located above the refrigeration instrument. A rectangular groove communicated with the air supply pipe is formed in the side surface of the rectangular block. A sealing block is slidably inserted into the rectangular groove. A U-shaped bracket is fixedly installed on the rectangular block. A threaded hole is formed in the bracket. A threaded rod is threadedly inserted into the threaded hole. One end of the threaded rod is rotatably connected to the sealing block, and the other end is fixedly installed with an adjusting block.

[0010] Preferably, a gasket is fixedly installed on the sealing block, and the gasket is made of rubber.

[0011] Preferably, the connection assembly includes a connection flange fixedly installed on the extrusion head, a connection ring fixedly sleeved on the extrusion pipe, and a plurality of bolt fasteners. A plurality of fixing holes are formed in the connection ring.

[0012] Preferably, a rubber sleeve is sleeved on the cold air nozzle, and one end of the rubber sleeve contacts the annular pipe.

[0013] In the utility model, the beneficial effects are as follows:

[0014] 1. When the plastic packaging bag is extruded, through the mutual cooperation of the fan, the air supply pipe, the annular pipe and the cold air nozzle, preliminary cooling can be carried out while extruding, so that the extruded plastic packaging bags all lose part of their plasticity, and the thickness of the subsequently processed plastic packaging bags is uniform and does not break, effectively improving the production quality of the plastic packaging bags;

[0015] 2. Through the mutual cooperation of the rectangular block, the threaded rod, the adjusting block and the sealing block, the flow rate and size of the gas ejected from the cold air nozzle can be controlled according to the production specifications of the packaging bag, so that the plastic packaging bag can be better cooled. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of an extrusion device for an easy-to-tear food packaging bag proposed by the utility model;

[0017] Figure 2 is a three-dimensional partial cross-sectional structural schematic diagram of an extrusion head, a fan, an air supply pipe and an annular pipe in an extrusion device for an easy-to-tear food packaging bag proposed by the utility model;

[0018] Figure 3 is a three-dimensional exploded structural schematic diagram of an extrusion head in an extrusion device for an easy-to-tear food packaging bag proposed by the utility model;

[0019] Figure 4 is Figure 2 an enlarged view of the structure at A in

[0020] In the figure: 1 base, 2 extruder, 3 extrusion pipe, 4 extrusion head, 5 cold air nozzle, 6 annular pipe, 7 fan, 8 air supply pipe, 9 refrigeration instrument, 10 rectangular block, 11 sealing block, 12 bracket, 13 threaded rod, 14 connection flange, 15 connection ring, 16 bolt fastener, 17 rubber sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] Referring to Figures 1-4 , an easy-to-tear food packaging bag extrusion device includes a base 1, an extruder 2 is fixedly installed on the base 1, an extrusion pipe 3 is fixedly installed at the output end of the extruder 2, and an extrusion head 4 is installed at one end of the extrusion pipe 3 through a connection assembly (the extruder 2 is a prior art and will not be described in detail here).

[0023] A plurality of mounting holes are formed in the extrusion head 4, and a cold air spray pipe 5 is fixedly installed in each of the plurality of mounting holes. An annular pipe 6 is fixedly sleeved on the extrusion pipe 3. A plurality of connection holes are formed in the annular pipe 6. One ends of the plurality of cold air spray pipes 5 are respectively inserted into the plurality of connection holes. A blower 7 is fixedly installed on the base 1, and an air supply pipe 8 is fixedly installed at the output end of the blower 7. The end of the air supply pipe 8 away from the blower 7 is communicated with the annular pipe 6;

[0024] The plurality of cold air spray pipes 5 are uniformly arranged on the extrusion head 4, and one ends of the plurality of cold air spray pipes 5 all face the center of the extrusion head 4. When the cold plastic packaging bag is extruded from the extrusion head 4, the blower 7 is started, and the generated cold air can be conveyed into the annular pipe 6 through the air supply pipe 8 and dispersed in the annular pipe 6. Then the cold air will enter into the plurality of cold air spray pipes 5 and be ejected from one end of the cold air spray pipe 5. The ejected cold air will be sprayed towards the center of the extrusion head 4, so that the cold air is sprayed on the extruded plastic packaging bag for preliminary cooling, so that the extruded plastic packaging bag loses part of its plasticity, and the thickness of the subsequently processed plastic packaging bag is uniform and does not rupture, effectively improving the production quality of the plastic packaging bag.

[0025] A refrigeration instrument 9 is fixedly installed in the middle section of the air supply pipe 8 (the refrigeration instrument 9 is a prior art and will not be described in detail here). A support block is fixedly installed on the refrigeration instrument 9, and the support block is fixedly installed on the base 1. The cold air in the air supply pipe 8 will enter the refrigeration instrument 9, and the refrigeration instrument 9 further cools the cold air, thereby improving the refrigeration effect of the device.

[0026] A rectangular block 10 is fixedly installed in the middle section of the air supply pipe 8. The rectangular block 10 is located above the refrigeration instrument 9. A rectangular groove communicating with the air supply pipe 8 is formed in the side surface of the rectangular block 10. A sealing block 11 is slidably inserted in the rectangular groove. A U-shaped bracket 12 is fixedly installed on the rectangular block 10. A threaded hole is formed in the bracket 12, and a threaded rod 13 is threadedly inserted into the threaded hole. One end of the threaded rod 13 is rotatably connected to the sealing block 11, and the other end is fixedly installed with an adjusting block. A sealing pad is fixedly installed on the sealing block 11, and the sealing pad is made of rubber material;

[0027] The sealing block 11 is inserted into the rectangular groove, so as to block the air supply pipe 8. The adjusting block can be rotated to drive the threaded rod 13 to move, and then under the action of the threaded holes opened on the bracket 12, the sealing block 11 is driven to move in the rectangular groove, so as to control the overlap degree between the air supply pipe 8 and the sealing block 11, and further control the flow rate and size of the gas ejected from the cold air nozzle 5, so that the plastic packaging bag can be better cooled.

[0028] The connecting component includes a connecting flange 14 fixedly installed on the extrusion head 4, a connecting ring 15 fixedly sleeved on the extrusion pipe 3, and a plurality of bolt fasteners 16. A plurality of fixing holes are opened on the connecting ring 15. A rubber sleeve 17 is sleeved on the cold air nozzle 5, and one end of the rubber sleeve 17 contacts the annular pipe 6;

[0029] The extrusion head 4 can be sleeved on one end of the extrusion pipe 3, and then the connecting flange 14 and the connecting ring 15 are fixedly connected together through the bolt fasteners 16. When the extrusion head 4 is installed on the extrusion pipe 3, one ends of the plurality of cold air nozzles 5 are respectively inserted into a plurality of connecting holes opened on the annular pipe 6. During the insertion process, one end of the rubber sleeve 17 will contact the annular pipe 6 and deform. Under the action of the rubber sleeve 17, cold air can be prevented from leaking out from the connecting holes.

[0030] In the present utility model, when the cold air plastic packaging bag is extruded from the extrusion head 4, the blower 7 is started, and the generated cold air can be conveyed into the annular pipe 6 through the air supply pipe 8, and then the cold air will enter into the plurality of cold air nozzles 5 and be ejected from one end of the cold air nozzles 5. The ejected cold air will be sprayed onto the plastic packaging bag for preliminary cooling, so that the extruded plastic packaging bags all lose part of their plasticity, and the thickness of the subsequently processed plastic packaging bags is uniform and does not crack, effectively improving the production quality of the plastic packaging bags.

[0031] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. An easy-tear food packaging bag extrusion device, comprising a base (1), characterized in that: An extruder (2) is fixedly mounted on the base (1); an extrusion tube (3) is fixedly mounted on the output end of the extruder (2); and an extrusion head (4) is mounted on one end of the extrusion tube (3) via a connecting assembly; The extrusion head (4) is provided with a plurality of mounting holes, and a cold air nozzle (5) is fixedly mounted in each of the plurality of mounting holes. An annular tube (6) is fixedly sleeved on the extrusion tube (3), and the annular tube (6) is provided with a plurality of connection holes. One end of each of the cold air nozzles (5) is respectively inserted into the plurality of connection holes. A fan (7) is fixedly mounted on the base (1), and an air supply pipe (8) is fixedly mounted on the output end of the fan (7), and an end of the air supply pipe (8) away from the fan (7) is connected to the annular tube (6).

2. The easy-tear food packaging bag extrusion device according to claim 1, characterized in that: A refrigerator (9) is fixedly mounted on the middle section of the air supply pipe (8), a support block is fixedly mounted on the refrigerator (9), and the support block is fixedly mounted on the base (1).

3. The easy-tear food packaging bag extrusion device according to claim 2, characterized in that: A rectangular block (10) is fixedly installed in the middle section of the air supply pipe (8), and the rectangular block (10) is located above the refrigerator (9). A rectangular groove connected to the air supply pipe (8) is opened on the side of the rectangular block (10), and a sealing block (11) is slidably inserted in the rectangular groove. A U-shaped bracket (12) is fixedly installed on the rectangular block (10), and a threaded hole is opened on the bracket (12). A threaded rod (13) is threadedly inserted in the threaded hole. One end of the threaded rod (13) is rotatably connected to the sealing block (11), and the other end is fixedly installed with an adjustment block.

4. The easy-tear food packaging bag extrusion device according to claim 3, characterized in that: A sealing gasket is fixedly mounted on the sealing block (11), and the sealing gasket is made of rubber material.

5. The easy-tear food packaging bag extrusion device according to claim 1, characterized in that: The connection assembly comprises a connection flange (14) fixedly mounted on an extrusion head (4), a connection ring (15) fixedly sleeved on an extrusion tube (3), and a plurality of bolt fasteners (16); the connection ring (15) is provided with a plurality of fixing holes.

6. The easy-tear food packaging bag extrusion device according to claim 1, characterized in that: The cold air spray pipe (5) is sleeved with a rubber sleeve (17), and one end of the rubber sleeve (17) is in contact with the annular tube (6).

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